Grease-cup.



PATENTED JULY 17, 1906. 0. W.-LEONARD.

GREASE 0UP.

APPLICATION FILED mmmz, 190s.

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[NI/ENTOR x 2 m m 0 a m f WITNESSES:

v A 'ITORNE Y5 UNITED sTATEs PATENT OFFICE.

CHARLES WARREN LEONARD, OF RICH MOIA D,

G R E AS E -C U P VIRGINIA.

No. 826,259. Specification of Letters Patent.

Application filed March 22, 1906. Serial No. 307,451-

Patented July 17, 1906.

To all whom it may concern.-

Be it known that I, CHARLES WARREN LEONARD, a citizen of the UnitedStates, residing at Richmond, in the county of Henrico and State ofVirginia, have invented a new and useful Grease-Cup, of which thefollowing is a specification.

This invention relates to grease-cups for use in supplying lubricant tothe wrist-pin of the drive-wheels of locomotives, although the same isequally adapted for use upon any bearings of-a like nature wherein therotatable element moves at a high speed. In devices of this charactersuch as heretofore employed it has been necessary for the operator tomanually adjust the cup at predetermined intervals for the purpose ofpressing the lubricant so as to force it upon the rotatable surface,this adjustment only being possible when the mechanism has been broughtto a standstill.

The object of this invention is to provide a cup having a forcing-pistonwhich is adapted to automatically press the lubricant out of the cup.

detachable lufrom which extends an outlet-passage 5, which is preferablyprovided with a tubular lining 6, having a head 7, which bears upon thebottom of the tubular extension 4 and has a concaved seat 8 at its upperend. Screwed into the extension 4 is the threaded end 9 of agrease-receptacle 10, having an angular flange 11, adapted to bear uponthe extension 4 when the receptacle is position. The upper portion 12 ofthe receptacle 10 is of less diameter internally than the lower portion13, there being formed an interior angular shoulder 14 between the twoportions 12 and 13. The large portion 13 of the receptacle is graduallytapered downward from the shoulder 14, so that the opening at the lowerend of the receptacle is of less diameter than the interior diameter ofthe receptacle at the base of the shoulder 14. This taper has beenbrought out in Fig. 2, wherein dotted lines are used to designate theposition which would be assumed by the wall of the receptacle if thesame were not tapered.

Shoulder 14 constitutes an abutment for a follower or piston consistingof a head 15, having a rounded extension 16 upon its lower The inventionconsists of a bricant-container having a forcing-piston therein the stemof which constitutes a guide for a weight which is slidably mountedthereon and is adapted to be thrown upward by the jolting of themechanism and upon falling by gravity will drive the piston against thelubricant and force a portion thereof out of its container and into thebearing.

e invention also consists of means for rendering this operationnoiseless and for controlling the feed of the lubricant.

he invention also consists of certain other novel features ofconstruction and combinations of parts, which will be hereinafter morefully described, and pointed out in the claims.

In the accompanying drawings is shown the preferred form of theinvention.

In said drawings, Figure 1 is an elevation showing the position assumedby the greasecup upon the pitman of a locomotive. Fig. 2 is an enlargedlongitudinal section through the grease-cup," and Fig. 3 is a sectionthrough the cup on line :0 at, Fig. 2.

Referring to the figures by numerals of refl erence, 1 is a collar suchas ordinarily formed at the end of a pitman 2 and adapted to surround awrist-pin 3. This collar has a tubular internally-threaded extension 4thereon,

an expansible metal ring 17 surrounds the head 15 and bears outwardlyupon packing 18, which is adapted to be held upon the head by a Washer19, secured in place by means of screws 20. By roviding a resilientpacking, such as herein escribed, the piston will contract in diameteras it moves from the shoulder 14 toward the lower end of the receptacle10, and vice versa. A stem 21 extends from the head 15 through an openin22, formed in the top of the receptacle 10, an loosely mounted on thisstem is a substantially oval weight 23, which is free to slide upon thestem. A cushion 24, preferably formed of rubber, is disposed upon thewasher 19, and another cushion 25, of similar material, is locatedwithin the upper end of the receptacle '10.

In using the device herein described the receptacle 10 is detached andinverted, so thatthe iston will assume a position against the shou der14. The lubricant, which is in the form of a cake, is inserted into theopen end of the receptacle, so as to completely fill the space betweenthe piston and said end, and said receptacle is then replaced upon theextension 4. When the locomotive starts secured in face adapted toproject into the socket 8, and

- above the follower,

follower within the casing, a weight loosely mounted above and adaptedto bear upon the follower, a guide for said weight, and cushioning meanswithin the path of the weight.

7. The combination with a casing for containing lubricant and having anoutlet; of a follower within the casing for bearing on the lubricant,means operated by the sudden movement of the casing for actuating thefollower, and means for retarding the movementof said follower.

8. The combination with a casing for containing lubricant and having anoutlet; of a follower within the casing adapted to bear upon thelubricant, a stem projecting from the follower, a Weight loosely mountedon the stem and adapted to bear upon the follower, and means forretarding the movement of the follower in proportion to the increase ofthe movement of the weight.

9. The combination with a casing for containing lubricant and having anoutlet; the interior of said casing being contracted toward the outlet;of a contractible follower mounted within the casing, a stem projectingtherefrom, and an actuating weight loosely mounted upon the stem.

.10. The combination with a movable lubricant-receptacle having anoutlet, the interior of said receptacle being contracted to ward theoutlet; of a contractible follower within the receptacle, a stemprojecting therefrom, a weight loosely mounted on the stem for actuatingthe follower, and cushions within the path of the weight.

11. The combination with a movable bear ing having an extension thereon;of a lubricant-containing casing detachably mounted within the extensionand having an outlet, a follower mounted within the casing, a stemthereon, and a weight loosely mounted on the stem and adapted to beactuated by the movement of the casing.

12. The combination with a movable bearing having an extension thereon;of a lubricant-containing casing detachably mounted within the extensionand having an outlet, the interior of said casing being contractedtoward the outlet, a contractible follower mounted within the contractedportion of the receptacle and bearing against the wall thereof, a stemupon the follower, and a weight loosely mounted thereon and adapted tobe actuated by the movement of the bearforward, the movement of theparts will cause the weight 23 to be thrown violently upward anddownward upon the rod 21, and as a result said weight will pound uponthe piston and drive it downward against the lubricant, forcing aportion thereof through the passage 5. As the lubricant is discharged inthis manner the stroke of the weight will of course increase, and as theforce of the blow exerted thereby will correspondingly increase it isnecessary to provide some means for cor, respondingly retaining thepiston, so that the discharge of the lubricant will be maintaineduniform. To produce this result, the lower portion of the receptacle 10is contracted, as described, so as to cause the compression of ring 17and packing 18, this compression being sufficient to offset theincreased stroke of the weight. By utilizing a cup such as hereindescribed it becomes unnecessary for the engineer or other operator togive the same any attention, except when it is necessary to fill it,because the lubricant will be automatically discharged whenever theengine is started or whenever the weight is actuated upon the rod 21through any jolting orirregular movement imparted to it.

What is claimed is 1. The combination with a casing having an outlet; ofmeans adapted to be reciprocated by sudden movement of the casing forforcing lubricant through the outlet, and means for resisting themovement of the first-mentioned means in proportion to the decrease oflubricant.

2. The combination with a casing for con taining lubricant, said casinghaving an outlet; of a follower within the casing for bearing on thelubricant, and means adapted to g be reciprocated by sudden movement ofthe casing for imparting movement to the follower, said casing adaptedto gradually resist the movement of the follower.

3. The combination with a casing for containing lubricant, said casinghaving an outlet; of a follower movably mounted within the casing, and aWeight loosely mounted and adapted to be reciprocated by the suddenmovement of the casing.

4. The combination with a casing for containing lubricant and having anoutlet; of a follower mounted to slide within the casing; a rodextending from the piston, and a weight mounted to reciprocate upon'therod.

' 5. The combination with a casing for containing lubricant and havingan outlet; of a follower mounted within the casing and adapted to bearupon the lubricant, a stem rojecting from the follower, a weight ooselymounted upon the stem, and cushioning means within the path of theweight. 6. The combination with a casing for containing lubricant andhaving an outlet; of a 13. The combination with a movable bearing havingan extension thereon; of a lubricant-containing casing detachablymounted within the extension and having an outlet, the interior of saidcasing being contracted toward the outlet, a contractible followermounted within the contracted portion of the receptacle and bearingagainst the wall thereof, a stem upon the follower, a weight looselymounted thereon and adapted to be actuated by the movement of thebearing, and cushions within the path of the Weight.

14. The combination with a casing for containing lubricant, said casingprovided with I portion, a stem projecting over the head, a weightloosely mounted thereon, and cushions in the path of the weight.

In testimony that I claim the foregoing as I5 my own I have heretoaffixed my signature in the presence of two Witnesses.

CHARLES WARREN LEONARD.

an outlet and having its interior contracted toward the outlet; of ahead mounted within the receptacle,

packing surrounding the head, resilient means interposed between theWitnesses: packing and head for holding said packing ALFRED P. LEE, incontact with the Wall of the contracted N. R. HOYLE.

